WO2013099724A1 - Dispositif d'analyse de gaz contenant un brouillard - Google Patents

Dispositif d'analyse de gaz contenant un brouillard Download PDF

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Publication number
WO2013099724A1
WO2013099724A1 PCT/JP2012/082883 JP2012082883W WO2013099724A1 WO 2013099724 A1 WO2013099724 A1 WO 2013099724A1 JP 2012082883 W JP2012082883 W JP 2012082883W WO 2013099724 A1 WO2013099724 A1 WO 2013099724A1
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Prior art keywords
gas
measured
liquid
mist
measuring
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PCT/JP2012/082883
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English (en)
Japanese (ja)
Inventor
岡本　真一
長安　弘貢
琢也 平田
勝 千代丸
田中　裕士
Original Assignee
三菱重工業株式会社
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Application filed by 三菱重工業株式会社 filed Critical 三菱重工業株式会社
Priority to EP12862677.7A priority Critical patent/EP2799836B1/fr
Priority to US14/353,298 priority patent/US9395342B2/en
Publication of WO2013099724A1 publication Critical patent/WO2013099724A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G01N33/0054—Ammonia
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/06—Investigating concentration of particle suspensions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/59—Transmissivity
    • G01N21/61—Non-dispersive gas analysers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0011—Sample conditioning
    • G01N33/0013—Sample conditioning by a chemical reaction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0011—Sample conditioning
    • G01N33/0014—Sample conditioning by eliminating a gas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0011—Sample conditioning
    • G01N33/0016—Sample conditioning by regulating a physical variable, e.g. pressure or temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G01N33/004—CO or CO2
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/10—Inorganic absorbents
    • B01D2252/102—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/20—Organic absorbents
    • B01D2252/204—Amines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/504—Carbon dioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B01D53/1456—Removing acid components
    • B01D53/1475—Removing carbon dioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/62—Carbon oxides
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2247—Sampling from a flowing stream of gas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2247—Sampling from a flowing stream of gas
    • G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
    • G01N2001/2261—Sampling from a flowing stream of gas in a stack or chimney preventing condensation (heating lines)
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2247—Sampling from a flowing stream of gas
    • G01N2001/2267—Sampling from a flowing stream of gas separating gas from liquid, e.g. bubbles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/40—Concentrating samples
    • G01N1/4055—Concentrating samples by solubility techniques
    • G01N2001/4066—Concentrating samples by solubility techniques using difference of solubility between liquid and gas, e.g. bubbling, scrubbing or sparging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N2015/0023—Investigating dispersion of liquids
    • G01N2015/0026—Investigating dispersion of liquids in gas, e.g. fog
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3554—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for determining moisture content
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/40—Capture or disposal of greenhouse gases of CO2

Definitions

  • amines etc. concentrations of amines and ammonia contained in the combustion exhaust gas are measured.
  • the present invention has been made to solve the above-described problem, and it is possible to easily and accurately measure the concentration of the substance to be measured in the target gas containing the mist of the substance to be measured. It aims at providing the mist containing gas analyzer which can be performed.
  • a mist-containing gas analyzer that solves the above-described problems is a mist-containing gas analyzer that measures the concentration of a substance to be measured in a target gas containing the mist of the substance to be measured that circulates in a duct.
  • Pressure measuring means for measuring the pressure of the target gas flowing through the duct
  • temperature measuring means for measuring the temperature of the target gas flowing through the duct
  • target gas flowing through the duct is a mist-containing gas analyzer that measures the concentration of a substance to be measured in a target gas containing the mist of the substance to be measured that circulates in a duct.
  • a flow rate measuring means for measuring the flow rate by radio waves or ultrasonic waves, a moisture content measuring means for measuring the moisture content in the target gas flowing in the duct by infrared light, and a collection liquid for dissolving the substance to be measured
  • a target container sampling means for sampling by sampling the target gas by suction means, and a sample by the target gas sampling means
  • the target gas feeding means for feeding the target gas thus collected into the collection liquid inside the collection container, and the suction speed of the target gas by the suction means were measured by the pressure measurement means.
  • a suction amount control means for controlling the suction means so as to be within a predetermined ratio with respect to the gas flow velocity of the target gas calculated based on the above, and a liquid sorting means for sorting the liquid in the collection container And measuring means for measuring the concentration of the substance to be measured in the liquid sorted by the liquid sorting means.
  • a mist-containing gas analyzer according to the present invention that solves the above-described problems is the mist-containing gas analyzer according to the above-described invention, wherein the substance to be measured is an amine and ammonia.
  • the mist-containing gas analyzer according to the present invention that solves the above-described problem is the mist-containing gas analyzer according to the invention described above, wherein the target gas is absorbed and removed of carbon dioxide by an absorbing solution containing amines. It is characterized by being a combustion exhaust gas.
  • the collection container 116 is connected to one end side of a delivery pipe 118 having a valve 103 and a feed pump 119 in the middle thereof.
  • the other end of the delivery pipe 118 is connected to the bottom of the liquid storage tank 120.
  • a collection liquid 2 for dissolving and collecting the amines and the like.
  • the bottom of the collection container 116 is connected to one end of a liquid feeding pipe 127 having a valve 105 in the middle.
  • the other end side of the liquid feeding pipe 127 is connected to a receiving port of the feeding pump 128.
  • the delivery port of the feed pump 128 communicates with a reception port of a constant volume / dilution device 129 that performs constant volume and dilution.
  • the outlet of the constant volume / dilution device 129 communicates with an inlet of a measuring device 130 which is a measuring means such as an ion exchange chromatography or an electric conductivity measuring device for measuring the concentration of the amines.
  • a drain pipe 131 having a valve 106 in the middle is connected between the valve 105 of the liquid feed pipe 127 and the feed pump 128, one end side of a drain pipe 131 having a valve 106 in the middle is connected.
  • the other end side of the drainage pipe 131 communicates outside the system.
  • the nitrogen gas introduction pipe 133 is The axial direction is inclined and oriented so that one end side is positioned below the other end side.
  • the other end side of the nitrogen gas introduction pipe 133 communicates with a nitrogen gas cylinder (not shown) that feeds nitrogen gas 4 that is an inert gas.
  • the guide pipe 112 is connected to one end of a leak pipe 135 having a valve 110a in the middle.
  • the other end of the leak pipe 135 communicates outside the system.
  • One end of a leak pipe 136 having a valve 110b in the middle is connected to the upper portion of the collection container 116.
  • the other end of the leak pipe 136 communicates outside the system.
  • a temperature sensor 144, a pressure gauge 145, a flow rate measuring device 146, and a gas composition measuring device 147 are attached to the circumferential surface of the duct 10 on the upstream side in the flow direction of the combustion exhaust gas 1 from the attachment location of the sampling pipe 111. ing.
  • the temperature sensor 144 is, for example, a thermocouple, and is a device that measures the temperature of the combustion exhaust gas 1 flowing through the duct 10.
  • the pressure gauge 145 is, for example, a pressure gauge, and is a device that measures the pressure of the combustion exhaust gas 1 flowing through the duct 10.
  • the flow rate measuring device 146 is, for example, a radio wave flow meter or an ultrasonic flow meter using the Doppler effect.
  • the flue gas 1 flowing through the duct 10 is irradiated with radio waves or ultrasonic waves at a predetermined angle and reflected waves thereof.
  • This is a device that measures the flow rate of the flue gas 1 without disturbing the flow of the flue gas 1 from the frequency change.
  • the gas composition measuring instrument 147 is a device that measures the gas composition (water content) of the combustion exhaust gas 1 by using infrared light, for example, without disturbing the flow of the combustion exhaust gas 1.
  • the gas flow meter 123, the cooler 124, the gas-liquid separator 125, the buffer tank 126 and the like constitute a target gas sampling means
  • the suction blower 122 and the like constitute a suction means
  • the valves 102 and 104 The inlet pipe 114, the supply pipe 115, the exhaust pipe 121, the suction blower 122, the gas flow meter 123, the cooler 124, the gas-liquid separator 125, the buffer tank 126, etc.
  • a liquid separating means is constituted by the valve 105, the liquid feeding pipe 127, the feeding pump 128, the constant volume / dilution device 129, etc., and the valve 103, the feeding pipe 118, the feeding pipe.
  • the supply pump 119, the liquid storage tank 120, etc. constitute collected liquid supply means, and the valve 106, the drainage pipe 131, etc.
  • the arithmetic and control unit 140 opens and closes the valves 103 and 110b based on the information from the liquid amount detector 142 so as to store a predetermined amount of the collected liquid 2 in the collection container 116.
  • the collection liquid 2 in the storage tank 120 is discharged from the leak pipe 136 while the gas in the collection container 116 is discharged out of the system by controlling the operation and the operation of the feed pump 119. It is fed from 118 into the collection container 116.
  • the arithmetic and control unit 140 When a specified amount of the collected liquid 2 is stored in the collection container 116, the arithmetic and control unit 140, based on information from the liquid amount detector 142, the combustion that circulates in the duct 10.
  • the valves 101 and 109 are controlled to be opened so that the inside of the sampling pipe 111 and the guide pipe 112 is purged with the exhaust gas 1, and the suction blower 122 is controlled to operate so that the combustion exhaust gas 1 in the duct 10 is removed.
  • the sample is taken into the sampling pipe 111 and discharged from the guide pipe 112 through the bypass pipe 134 and the exhaust pipe 121 to the outside of the system.
  • the flue gas 1 from the feed pipe 115 is fed into the collected liquid 2 via the filter 117, the flue gas 1 is made into fine bubbles and the collected liquid 2 is mixed with the collected liquid 2.
  • the contact area can be increased, and the amines and the like in the combustion exhaust gas 1 can be efficiently collected.
  • the arithmetic control unit 140 determines that the current operation value, that is, the suction speed of the combustion exhaust gas 1 by the suction blower 122 is within a predetermined ratio with respect to the gas flow rate of the combustion exhaust gas 1 calculated based on the data. For example, it is determined whether it is within plus or minus 10% (third step S3). If the current operation value is within plus or minus 10% of the gas flow rate of the flue gas 1, the process proceeds to the fourth step S4, and the current operation value exceeds plus or minus 10% of the gas flow rate of the flue gas 1. If so, the process proceeds to a fifth step S5.
  • step S4 the operation of the suction blower 122 is continued as it is, and the control flow of the suction blower 122 is ended. Further, in the fifth step S5, the suction blower 122 is adjusted so that the suction amount of the combustion exhaust gas 1 by the suction blower 122 is within ⁇ 10% of the gas flow rate of the combustion exhaust gas 1. The process proceeds to step S6. In the sixth step S6, the suction amount of the combustion exhaust gas 1 by the suction blower 122 becomes the same as the gas flow rate of the combustion exhaust gas 1, so that suction is performed at a constant speed, and the control flow of the suction blower 122 ends. It becomes.
  • the arithmetic and control unit 140 controls the operation of the constant volume / dilution unit 129 so as to send the mixed specified amount of the liquids 2 and 3 to the measuring unit 130.
  • the arithmetic control device 140 can calibrate the measurement result based on information from the measurement device 130. It is determined whether or not it is within the range, and if it is within the range that can be calibrated, the concentration of the amines and the like in the combustion exhaust gas 1 is calculated, and the result is displayed on the monitor 143.
  • the arithmetic and control unit 140 may determine the amines and the like in the liquids 2 and 3 fed to the measurement device 130.
  • the dilution rate is calculated so that the concentration is within the calibratable range, and the constant volume / dilution device 129 is controlled to dilute the liquids 2 and 3 with a diluted solution such as pure water at the calculated magnification.
  • the arithmetic and control unit 140 again sends the diluted liquids 2 and 3 to the measuring device 130 in a specified amount.
  • the arithmetic and control unit 140 removes the liquids 2 and 3 in the collection container 116 based on information from the measuring unit 130.
  • the valves 102, 105, 106, and 108 are controlled so as to be discharged out of the system, and the nitrogen gas 4 is captured from the nitrogen gas introduction pipe 133 through the introduction pipe 114 and the supply pipe 115. All the liquids 2 and 3 in the collection container 116 are discharged out of the system through the liquid supply pipe 127 and the drainage pipe 131 while being fed into the collection container 116.
  • the arithmetic and control unit 140 based on the information from the timer, the valves 107 and 110b are controlled to be closed (the valve 102 is kept open) and the valves 105, 106 and 108 are controlled to be opened so that the cleaning liquid 3 is discharged out of the system. Is fed from the nitrogen gas introduction pipe 133 to the inside of the collection container 116 through the introduction pipe 114 and the supply pipe 115, and all the cleaning liquid 3 in the collection container 116 is fed to the liquid. The liquid is discharged from the pipe 127 through the drain pipe 131.
  • the arithmetic and control unit 140 cleans the filter 117 based on the information from the timer.
  • the valve 108 is controlled to be closed (the valves 102, 105, and 106 are kept open), the valve 107 is controlled to be opened, and the cleaning liquid 3 is supplied from the cleaning liquid introduction pipe 132 to the feeding pipe 115.
  • the filter 117 is supplied to the filter 117 for a specified time to clean the filter 117, and the cleaning liquid 3 is discharged from the liquid supply pipe 127 to the outside of the system through the drainage pipe 131.
  • the gas flow rate, pressure, temperature, and moisture content of the combustion exhaust gas 1 in the duct 10 are not disturbed in the gas flow of the combustion exhaust gas 1.
  • the suction blower 122 By controlling the suction blower 122 so as to be within the range, the combustion exhaust gas 1 in the duct 10 can be sucked appropriately at a constant speed without causing clogging due to a change in gas properties of the combustion exhaust gas 1. Therefore, even if the combustion exhaust gas 1 contains not only gaseous amines but also mist, the combustion exhaust gas 1 It is possible to measure the concentration of the substance to be measured easily and accurately.
  • the mist-containing gas analyzer according to the present invention not only contains the substance to be measured in a gaseous state, but also the concentration of the substance to be measured in the target gas, even if it is a target gas that also contains the mist. Can be measured easily and accurately, and can be used extremely beneficially in various industries.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

L'invention concerne un dispositif d'analyse de gaz contenant un brouillard, capable de mesurer de façon simple et précise la concentration d'une substance à mesurer dans un gaz objet d'analyse contenant un brouillard de la substance à mesurer. Un dispositif d'analyse de gaz contenant un brouillard selon l'invention comporte : des instruments (145, 144, 146, 147) de mesure qui mesurent la pression, la température, le débit et la quantité d'humidité dans un gaz (1) d'échappement de combustion ; un récipient (116) de collecte dans lequel est placé le liquide recueilli (2) ; un tube (111) de prélèvement et un tube-guide (112) à travers lesquels le gaz d'échappement de combustion est aspiré et échantillonné par une soufflante (122) d'aspiration et introduit dans le liquide recueilli contenu dans le récipient de collecte ; une unité (140) de commande de calcul qui commande la soufflante d'aspiration de telle façon que la vitesse d'aspiration du gaz d'échappement de combustion par la soufflante d'aspiration se situe dans la limite d'un rapport prédéterminé par rapport au débit de gaz d'échappement de combustion calculé sur la base des valeurs mesurées ; un moyen de prise d'aliquotes de liquide qui prend une aliquote du liquide présent dans le récipient de collecte ; et une unité (130) de mesure qui mesure la concentration de la substance à mesurer dans l'aliquote du liquide prise par le moyen de prise d'aliquotes de liquide.
PCT/JP2012/082883 2011-12-27 2012-12-19 Dispositif d'analyse de gaz contenant un brouillard WO2013099724A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12862677.7A EP2799836B1 (fr) 2011-12-27 2012-12-19 Dispositif d'analyse de gaz contenant un brouillard
US14/353,298 US9395342B2 (en) 2011-12-27 2012-12-19 Mist-containing gas analysis device

Applications Claiming Priority (2)

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JP2011-284659 2011-12-27
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